| Name/homepage | Description | API URL |
| Ely.by | Licensed under Apache-2.0, but not intended for self-hosting. If using 2FA, you must append the code to the end of your password during login in the format "password:code". | https://account.ely.by/api/authlib-injector |
| Blessing Skin | Also self-hostable. | https://skin.prinzeugen.net/api/yggdrasil |
| LittleSkin | Another popular instance of Blessing Skin. | https://littleskin.cn/api/yggdrasil |
| Drasl | Also self-hostable. The public instance requires a Minecraft account to register. | https://drasl.unmojang.org/authlib-injector |
| Name/homepage | Description | License |
| Drasl | Flexible, minimalistic API server written in Go | GPLv3 |
| Blessing Skin Server | Feature-rich skin server written in PHP. Authentication server functionality is supported as a plugin. | MIT |